/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Operations/GeodesicPath.h
true if no part of the global path lies in the wedge (partial one-ring) on PathJoint.Interior side
bool IsJointFlexible ( const [FPathJoint](API\Plugins\DynamicMesh\Operations\FDeformableEdgePath\FPathJoint) & PathJoint ) const